7282290 has 64 divisors (see below), whose sum is σ = 18817920. Its totient is φ = 1797120.

The previous prime is 7282279. The next prime is 7282291. The reversal of 7282290 is 922827.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7282291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55525 + ... + 55655.

It is an arithmetic number, because the mean of its divisors is an integer number (294030).

Almost surely, 2^7282290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7282290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9408960).

7282290 is an abundant number, since it is smaller than the sum of its proper divisors (11535630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7282290 is a wasteful number, since it uses less digits than its factorization.

7282290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7282290 is about 2698.5718445133. The cubic root of 7282290 is about 193.8307412354.

The spelling of 7282290 in words is "seven million, two hundred eighty-two thousand, two hundred ninety".